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ramips: append tail to WF2881 initramfs image

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Stock firmware has a vendor-defined tail at the end of uImage for image
validation. This patch enables OpenWrt installation from stock firmware
without having to access the UART console.

Installation via web interface:
1.  Flash **initramfs** image through the stock web interface.
2.  Boot into OpenWrt and perform sysupgrade with sysupgrade image.

Signed-off-by: Sungbo Eo <mans0n@gorani.run>
This commit is contained in:
Sungbo Eo 2020-02-07 20:26:05 +09:00 committed by Adrian Schmutzler
parent fb99ac6807
commit be3e98ce26
1 changed files with 8 additions and 0 deletions
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8
target/linux/ramips/image/mt7621.mk
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@ -81,6 +81,12 @@ define Build/iodata-mstc-header
)
endef
define Build/netis-tail
echo -n $(1) >> $@
echo -n $(UIMAGE_NAME)-yun | $(STAGING_DIR_HOST)/bin/mkhash md5 | \
sed 's/../\\\\x&/g' | xargs echo -ne >> $@
endef
define Build/ubnt-erx-factory-image
if [ -e $(KDIR)/tmp/$(KERNEL_INITRAMFS_IMAGE) -a "$$(stat -c%s $@)" -lt "$(KERNEL_SIZE)" ]; then \
echo '21001:6' > $(1).compat; \
@ -631,6 +637,8 @@ define Device/netis_wf2881
KERNEL_SIZE := 4096k
IMAGE_SIZE := 129280k
UBINIZE_OPTS := -E 5
UIMAGE_NAME := WF2881_0.0.00
KERNEL_INITRAMFS := $(KERNEL_DTB) | netis-tail WF2881 | uImage lzma
IMAGES += factory.bin
IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
IMAGE/factory.bin := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi | \